Periodic and quasi-periodic attractors for the spin-orbit evolution of Mercury with a realistic tidal torque

  title={Periodic and quasi-periodic attractors for the spin-orbit evolution of Mercury with a realistic tidal torque},
  author={Michele V. Bartuccelli and Jonathan H. B. Deane and Guido Gentile},
  journal={Monthly Notices of the Royal Astronomical Society},
In this paper, we make a detailed study of the spin-orbit dynamics of Mercury, as predicted by the realistic model which has been recently introduced in a series of papers mainly by Efroimsky and Makarov. We present numerical and analytical results concerning the nature of the librations of Mercury’s spin in the 3:2 resonance. The results provide evidence that the librations are quasi-periodic in time, consisting of a slow oscillation, with an amplitude of order of arcminutes, superimposed on… 

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